luttgens



(No Model.)

. H. A. LUTTGENS.

LOGOMOTIVE BOILER.

NO. 307,480. K Patented NOV. 4, 1884.

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HENRY A. LUTTGEJS, OF PATERSO tOGERS LOCOMOTIVE AND MA N, N EV JERSEY,ASSIGrNOR TO THE CHINE VORKS, OFSAME PLACE.

LOCOFWOTIVE-BOILER.

SPECIFICATIGN forming part of Letters Patent ivo. 307,480, datedNeve-meer e, 1.884.

Application [iled June 25, 1884. (No model.)

To all whom, it may concern/.-

Be it known that I, HENRY A. LUr'renNs, of Paterson, Passaic county, inthe State of New Jersey, have invented certain new and usefulImprovements in Locomotive-Boilers, of which the following is aspecification.

The invention applies to that class oi' locomotives in which afeed-water heater is employed having tubes through which are conductedthe hot gaseous products of combustion after they have been dischargedfrom the boiler-tubes. Such heaters add materially to the economy of theproduction of steam; but it is found that they somewhat retard thedraft.

One obj ect oi my invention is to reduce such retardation. I provide alight and peculiarlyformed plate, which I term a deileetor, made inseveral sections bolted together, which is applied on the side oftheheater which receives the hot gases. It directs them into the severaltubes. It is so formed as to present angular ridges instead of theordinary plane tube sheet surfaces between the mouths ol" the severaltubes. rllhese ridges divide the currents of gases and lead them bygradual deiiection into the several tubes.

A difficulty is experienced with heaters as ordinarily used, in the factthat the solid particles oi" coal and cinders which move with theescaping gases through the boiler-tubes are liable to strike against theflat face of the heater between the tubes and rebound with so much forcethat they fall to the bottom ot' the space and accumulate there. It isdifiicult, even with a very strong dral't, to again lift such particlesot' solid matter alter they have become tightly packed in the bottom. Mydei'lector avoids this evil Vby presenting no ilat surfaces againstwhich the sparks or solid matter can strike and thus rebound. The entirespaces between the several tubes are covered bythe sharp ridges, andthesolid matter, striking either iaee ot' a ridge, is led directly into oneof the tubes and moves through it. On

emerging from the tubes of the heater the solid matter is deflectedupward by the ordinary means and moves with the current of gases outthrough the stack. Y

The accompanying drawings form a part of Spccilication, and representwhat I conthis sider the best means of carrying out the invention.

Figure 1 is a longitudinal section of a locomotive-boiler with mydelector in place. Fig.l 2 is a cross-section. The remaining figures areon a larger scale. Fig. 3 is a face view of a portion. Fig. 4. is acorresponding crosssection.

Similar letters of reference indicate like parts in all the figures.

A is the cylindrical shell or barrel of the boiler.

A is a portion of the boiler proper'. a are the tubes thereof, and a isthe tube-sheet.

B is the heater; Z), the tubes 5 and b', the tubesheet thereof, which ispresented toward the approaching gases.

M is aconnecti11g-cylinder, formed of one or more pieces of stout sheetmetal, shown as having a diameter a little greater than the barrel A orthe heater D; but this is not material. It is provided withv a man-hole,m, having a elose-iitting cover, h

D is my del-lector, certain portions being designated, when necessary,by additional marks, as D D2. It is made in two sections to facilitateits introduction and removal. Each section has lugs D', which receivebolts H, confining the sections rigidly together to serve as one. It maybe made in more than two sections, the parts being rigidly securedtogether after they are in place.

Holes near the edges of my delicctor receive studs E, set in the 'i'aceof the heater near the edges. Split keys G, inserted in the slots inthese studs, hold the dellcetor firmly in position.

The dellector may be a thin casting of iron, or preferably steel. 1t isformed with holes d, exactly coinciding on one side in size and positionwith the tubesb of the heater. The holes liare toward the other side andbecome graduallysix-sided. They are extended in this form until theymerge into each other. The form is such that the partitions between theseveral holes are ridges thick on the face toward the heater anddiminishing to nothing on the other face of the defiector. These ridgesare niade hollow for lightness. In other words, the spaces between thetubes are ridges of il-sec- IOO tion presented with their sharp edgestoward the incoming gases. The other face of the device presentscircular holes matching to the tubes of the heater. Between these holesare cavities of Vsection.

Whenever it shall be necessary to examine or repair the tube-sheet b orthe adjacent ends of the tubes b, the deflector may be taken apart byremoving the bolts H and the split keys G, and the several sectionsbeing removed through the man-hole m, the heater is exposed, as usual.

Modifications may be made in the Vforms and proportions. The deiiectormay be swaged from wronght-iron or steel instead of cast. The thicknessof the deilector, and consequently the Obliquity of the angle formed bythe tWo sides of the several ridges, may be varied Within considerablelimits.

It will be understood that the exterior of the boiler and heater may belagged with felt, wood, or sheet metal, like ordinary boilers.

All the ordinary or suitable appliances in general practice-as gages-maybe used with my invention.

2. In a locomotive, the deector D, having flaring holes d, and made indetachable sections, in combination with fastening means H, the boilerA, tubular heater B, and connect` ing shell or casing M, having aman-hole, m, arranged for joint operation as herein specied.

In testimony whereof I have hereunto set my hand, at Paterson, NewJersey, this 6th day of June, 1884, in the presence of two subscribingwitnesses.

HENRY A. LU TTGENS.

Vitnesscs: Roer. S. HUGHns, A. Monaca.

